Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-12T16:41:32.940Z Has data issue: false hasContentIssue false
  • English
  • Français

The Newly-Discovered γ Doradus Variables

Published online by Cambridge University Press:  12 April 2016

Anthony B. Kaye ,
Gerald Handler ,
Kevin Krisciunas ,
Ennio Poretti  and
Filippo M. Zerbi
Anthony B. Kaye
Affiliation:
Applied Theoretical and Computational Physics Division, Los Alamos National Laboratory X-TA, MS B-220, Los Alamos, New Mexico 87545, U.S.A.
Gerald Handler
Affiliation:
South African Astronomical Observatory, P.O. Box 9, Observatory 7935, West Cape, South Africa
Kevin Krisciunas
Affiliation:
Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195-1580, USA
Ennio Poretti
Affiliation:
Osservatorio Astronomico di Brera/Merate Via Bianchi 46, I-23807 Merate (Lc), Italy
Filippo M. Zerbi
Affiliation:
Osservatorio Astronomico di Brera/Merate Via Bianchi 46, I-23807 Merate (Lc), Italy

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this contribution we describe a new class of pulsating stars, the prototype of which is the bright, early F-type dwarf, γ Doradus. These stars typically have between 1 and 5 periods ranging from 0.4 to 3 d with photometric amplitudes up to 0ṃ1 in Johnson V. The mechanism for these observed variations is high-order, low-degree, nonradial, gravity-mode pulsation. A recent theoretical development describing a proposed driving mechanism for these new variables is discussed.

Type
Part 6. Variables Close to the Main Sequence
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 426 - 429
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Balona, L. A., Böhm, T., Foing, B.H., et al. 1996, MNRAS, 281, 1315 Google Scholar
Breger, M. & Beichbuchner, F. 1996, A&A, 313, 851 Google Scholar
Cousins, A.W.J. & Warren, P.R. 1963, Mon. Notes Astron. Soc. S. Afr.., 22, 65 Google Scholar
Guzik, J.A., Kaye, A.B., Bradley, P.A., et al. 1999, in preparationGoogle Scholar
Guzik, J.A., Kaye, A.B., Bradley, P.A., Cox, A.N., & Neuforge, C. 2000, in these proceedings, p. 445Google Scholar
Hall, D.S. 1995, in ASP Conf. Ser. Vol. 79, Robotic Telescopes: Current Capabilities, Present Developments, and Future Prospects for Automated Astronomy, ed. Henry, G. W. & Eaton, J. A. (San Francisco: ASP), 65 Google Scholar
Hatzes, A.P. 1998, MNRAS, 299, 403 Google Scholar
Kaye, A. B. 1998, Ph.D. Thesis, Georgia State Univ. Google Scholar
Kaye, A.B., Henry, G.W., Fekel, F.C., & Hall, D.S. 1999a, MNRAS, 308, 1081 Google Scholar
Kaye, A.B., Henry, G.W., Fekel, F.C., et al. 1999b, AJ, in pressGoogle Scholar
Kaye, A.B. & Zerbi, F.M. 1997, Delta Scuti Star Newsl., 11, 32 Google Scholar
Krisciunas, K. 1994, Comments Astrophys., 17, 213 Google Scholar
Krisciunas, K., Aspin, C., Geballe, T.R., et al. 1993, MNRAS, 263, 781 Google Scholar
Krisciunas, K., Griffin, R.F., Guinan, E. F., Luedeke, K.D., & McCook, G.P. 1995, MNRAS, 273, 662 Google Scholar
Mantegazza, L., Poretti, E., & Zerbi, F.M. 1994, MNRAS, 270, 439 Google Scholar
Poretti, E., Koen, C., Martinez, P., et al. 1997, MNRAS, 292, 621 Google Scholar
Stobie, R.S. & Whitelock, P.A., ed. 1995, ASP Conf. Ser. Vol. 83, Astrophysical Applications of Stellar Pulsation (San Francisco: ASP)Google Scholar
Zerbi, F.M., Garrido, R., Rodríguez, E., et al. 1997, MNRAS, 290, 401 Google Scholar
Zerbi, F.M., Rodríguez, E., Garrido, R., et al. 1999, MNRAS, 303, 275 Google Scholar